The ratio of two cars are in the ratio of 5:4 the faster car covers the distance of 325 km in 8 hours find the time taken by the other car to cover the same distance.

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Solution

Answer :
Given Ratio of speed of two cars is 5 : 4
Let ratio coefficient = x
So,
Speed of cars = 5x and 4x
Also given faster car covers 325 km in 8 hr
We know :

Speed = $\frac{D i s \tan c e}{T i m e}$
So,
5x = $\frac{325}{8}$

5x = 40.625

x = 8.125
So,
Speed of other car = 4x = 4 ( 8.125 ) = 32.5 km / hr
So,
Time taken by this car to cover 325 km = $\frac{325}{32.5}$ = 10 hr ( Ans )

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